SAN BERNARDINO – There were plenty of rollovers in the inaugural Lucas Oil Off-Road Racing Series event at Glen Helen Raceway over the weekend.

The last rollover in the three-day event, the fifth stop of the series’ eight-race schedule, turned out to be the worst of them all.

In the final race of the night on late Sunday, Robbie Pierce of Alpine rolled his Pro2 Unlimited series truck 3 1/2 times.

Pierce, starting beside eventual winner Rob MacCachren of Las Vegas on the third row, bumped with several other two-wheel powered trucks on the first lap and flipped on the whoops section between Turns 2 and 3 on the five-turn course. The race was stopped for 17 minutes while the safety crew extracted the 50-year-old from his truck. He was transported to Loma Linda University Medical Center. Track officials said he was conscience, but groggy during the journey.

LOORRS competition director Tony Vanillo and publicist Kelli Willmore on Monday said Pierce broke both collarbones and hit his knee, mostly likely on the dashboard, which required stitches. He was released from the hospital Tuesday.

“He was all crossed up,” MacCachren said of Pierce. “Somebody got into me and there was stuff everywhere.”

MacCachren scored a weekend sweep to increase his series points lead.

He has won six of the 10 races this season. He had the lead by the second lap and won by a 6.621 seconds, one of the largest margins of victories for the weekend. Montebello’s Carl Renezeder, the reigning champion in both Pro2 and Pro4, recovered from an abysmal weekend to finish second. He was eighth in Saturday’s Pro2 race and last and 10th in the Pro4 races.

“It’s not easy,” MacCachren said. “Twenty-four hours a day, seven days a week our guys work on the truck. I go to bed thinking about making it quicker and wake up with that thought. The results are there.”

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